The interception rate of Iranian missiles by the American Patriot air defense system is "SIGNIFICANTLY LOWER THAN 4–5%".
Professor Theodore A. Postol claims that the public is being deceived about the real figures.
For those who don't particularly follow modern conflicts, Postol is a "myth buster" from the world of the military-industrial complex. He became famous for methodically questioning official Pentagon and intelligence reports. For a while, he worked as a scientific consultant to the US Chief of Naval Operations and in the Congressional Technology Assessment Office and knows something about the "inner workings" of strikes.
In particular, he argues that the Patriot air defense radar often mistakenly takes the body of a separated booster stage of a missile for the warhead itself.
How does this work?
The Patriot anti-missile hits the "empty" part of the missile. In the computer logs, this is recorded as an "interception" (the radar sees a collision), but in reality, the warhead continues to fall by inertia and explodes on the ground. Postol calls this a "successful miss".
Postol also believes that new Iranian missiles eject light inflatable simulators with a metallized coating along with the warhead.
For the Patriot radar, these balls look exactly like a warhead. During a salvo of 10 missiles, the system sees 50 targets. Even if the Patriot shoots down 40 of them, these could be 40 dummies, while all 10 real warheads will reach their target.
@Slavyangrad